Cooling of a nanomechanical resonator in a hybrid optomechanical system: Effect of parametric interactions

Highlights: • A hybrid optomechanical system in the presence of parametric amplifiers is investigated. • Cooling of the mechanical resonator is improved with increase of the gain values of amplifiers. • With increase of input powers, lower temperatures are obtained. • Tuning on red sideband, the lowest temperature is obtained. In this paper we propose a hybrid optomechanical system consisting of two optical cavities, in which a mechanical mirror acts as the interface between cavities. It is considered that each cavity contains an optical parametric amplifier. We show that the presence of both parametric amplifiers can enhance cooling of oscillations of the movable mirror. Also, we show that by considering appropriate values for optical parameters of the system, an optimal temperature is obtained for the movable mirror.